diff --git a/application/application.android.ts b/application/application.android.ts
index 895f253f2..cb711504a 100644
--- a/application/application.android.ts
+++ b/application/application.android.ts
@@ -315,7 +315,10 @@ global.__onUncaughtError = function (error: Error) {
     exports.notify({ eventName: dts.uncaughtErrorEvent, object: appModule.android, android: error });
 }
 
-exports.start = function () {
+exports.start = function (entry?: frame.NavigationEntry) {
+    if (entry) {
+        dts.mainEntry = entry;
+    }
     dts.loadCss();
 }
 
diff --git a/application/application.d.ts b/application/application.d.ts
index aba0b1ebb..4eba814ab 100644
--- a/application/application.d.ts
+++ b/application/application.d.ts
@@ -124,7 +124,7 @@ declare module "application" {
     /**
      * Call this method to start the application. Important: All code after this method call will not be executed!
      */
-    export function start();
+    export function start(entry?: frame.NavigationEntry);
 
     /**
      * The main entry point event. This method is expected to use the root frame to navigate to the main application page.
diff --git a/application/application.ios.ts b/application/application.ios.ts
index 983659665..d40ced6cb 100644
--- a/application/application.ios.ts
+++ b/application/application.ios.ts
@@ -224,8 +224,11 @@ global.__onUncaughtError = function (error: Error) {
 }
 
 var started: boolean = false;
-exports.start = function () {
+exports.start = function (entry?: frame.NavigationEntry) {
     if (!started) {
+        if (entry) {
+            exports.mainEntry = entry;
+        }
         started = true;
         exports.loadCss();
         UIApplicationMain(0, null, null, exports.ios && exports.ios.delegate ? NSStringFromClass(exports.ios.delegate) : NSStringFromClass(Responder));
diff --git a/apps/absolute-layout-demo/app.ts b/apps/absolute-layout-demo/app.ts
index f8c884d9e..83299891c 100644
--- a/apps/absolute-layout-demo/app.ts
+++ b/apps/absolute-layout-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "mainPage";
-application.start();
+application.start({ moduleName: "mainPage" });
diff --git a/apps/action-bar-demo/app.ts b/apps/action-bar-demo/app.ts
index 519a85d36..c21b42013 100644
--- a/apps/action-bar-demo/app.ts
+++ b/apps/action-bar-demo/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Needed only for build infrastructure
 application.cssFile = "app.css";
 
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/animations/app.ts b/apps/animations/app.ts
index 2baebd169..80e9b1de8 100644
--- a/apps/animations/app.ts
+++ b/apps/animations/app.ts
@@ -4,5 +4,4 @@ import trace = require("trace");
 trace.enable();
 trace.setCategories(trace.categories.concat(trace.categories.Animation));
 
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/connectivity-demo/app.ts b/apps/connectivity-demo/app.ts
index bc46e818f..a62cadc76 100644
--- a/apps/connectivity-demo/app.ts
+++ b/apps/connectivity-demo/app.ts
@@ -1,4 +1,3 @@
 import application = require("application");
 
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/cuteness.io/app.ts b/apps/cuteness.io/app.ts
index 281ffc118..081b31547 100644
--- a/apps/cuteness.io/app.ts
+++ b/apps/cuteness.io/app.ts
@@ -5,8 +5,5 @@ fps.addCallback(function (fps, minFps) {
 });
 fps.start();
 
-// Set the start module for the application
-application.mainModule = "main-page";
-
 // Start the application
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/cuteness.unoptimized/app.ts b/apps/cuteness.unoptimized/app.ts
index 34c870b16..1c181d61b 100644
--- a/apps/cuteness.unoptimized/app.ts
+++ b/apps/cuteness.unoptimized/app.ts
@@ -5,8 +5,5 @@ fps.addCallback(function (fps, minFps) {
 });
 fps.start();
 
-// Set the start module for the application
-application.mainModule = "main-page";
-
 // Start the application
-application.start();
\ No newline at end of file
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/editable-text-demo/app.ts b/apps/editable-text-demo/app.ts
index cb572300b..1e0fb2c2d 100644
--- a/apps/editable-text-demo/app.ts
+++ b/apps/editable-text-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/gallery-app/app.ts b/apps/gallery-app/app.ts
index 519a85d36..c21b42013 100644
--- a/apps/gallery-app/app.ts
+++ b/apps/gallery-app/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Needed only for build infrastructure
 application.cssFile = "app.css";
 
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/list-view-demo/app.ts b/apps/list-view-demo/app.ts
index cb572300b..1e0fb2c2d 100644
--- a/apps/list-view-demo/app.ts
+++ b/apps/list-view-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/modal-views-demo/app.ts b/apps/modal-views-demo/app.ts
index 8c0658fa1..b4db06885 100644
--- a/apps/modal-views-demo/app.ts
+++ b/apps/modal-views-demo/app.ts
@@ -1,5 +1,4 @@
 import application = require("application");
-application.mainModule = "main-page";
 import trace = require("trace");
 trace.enable();
 trace.setCategories(trace.categories.concat(
@@ -7,4 +6,4 @@ trace.setCategories(trace.categories.concat(
     //trace.categories.Layout,
     //"LayoutRootView.iOS"
     ));
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/notifications-demo/app.ts b/apps/notifications-demo/app.ts
index 50b013e95..ababe2c5d 100644
--- a/apps/notifications-demo/app.ts
+++ b/apps/notifications-demo/app.ts
@@ -1,5 +1,2 @@
 import application = require("application");
-
-application.mainModule = "main-page";
-
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/orientation-demo/app.ts b/apps/orientation-demo/app.ts
index 50b013e95..ababe2c5d 100644
--- a/apps/orientation-demo/app.ts
+++ b/apps/orientation-demo/app.ts
@@ -1,5 +1,2 @@
 import application = require("application");
-
-application.mainModule = "main-page";
-
-application.start();
+application.start({ moduleName: "main-page" });
diff --git a/apps/paylocity/app.ts b/apps/paylocity/app.ts
index e90eb1b4b..56df6865e 100644
--- a/apps/paylocity/app.ts
+++ b/apps/paylocity/app.ts
@@ -1,6 +1,5 @@
 import application = require("application");
 
-application.mainModule = "login";
 application.cssFile = "./style.css";
 
-application.start();
+application.start({ moduleName: "login" });
\ No newline at end of file
diff --git a/apps/perf-tests/ApplicationLoadTimeAndFPS/app.ts b/apps/perf-tests/ApplicationLoadTimeAndFPS/app.ts
index 56be791b5..ef0bd1f3c 100644
--- a/apps/perf-tests/ApplicationLoadTimeAndFPS/app.ts
+++ b/apps/perf-tests/ApplicationLoadTimeAndFPS/app.ts
@@ -6,6 +6,4 @@ fps.addCallback(function (fps, minFps) {
 });
 fps.start();
 
-application.mainModule = "ApplicationLoadTimeAndFPS/mainPage";
-
-application.start();
+application.start({ moduleName: "ApplicationLoadTimeAndFPS" });
diff --git a/apps/perf-tests/ApplicationSize/app.ts b/apps/perf-tests/ApplicationSize/app.ts
index e4ad33bef..5ef564246 100644
--- a/apps/perf-tests/ApplicationSize/app.ts
+++ b/apps/perf-tests/ApplicationSize/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "ApplicationSize/mainPage";
-application.start();
+application.start({ moduleName: "ApplicationSize/mainPage" });
diff --git a/apps/perf-tests/ComplexObjectGraphMemoryTest/app.ts b/apps/perf-tests/ComplexObjectGraphMemoryTest/app.ts
index 7e88d8d2c..fb7cc917e 100644
--- a/apps/perf-tests/ComplexObjectGraphMemoryTest/app.ts
+++ b/apps/perf-tests/ComplexObjectGraphMemoryTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "ComplexObjectGraphMemoryTest/mainPage";
+application.start({ moduleName: "ComplexObjectGraphMemoryTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/ControlCreationSpeedTest/app.ts b/apps/perf-tests/ControlCreationSpeedTest/app.ts
index 0fda9833f..3cde5390b 100644
--- a/apps/perf-tests/ControlCreationSpeedTest/app.ts
+++ b/apps/perf-tests/ControlCreationSpeedTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "ControlCreationSpeedTest/mainPage";
+application.start({ moduleName: "ControlCreationSpeedTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/LargeObjectArrayMemoryLeakTest/app.ts b/apps/perf-tests/LargeObjectArrayMemoryLeakTest/app.ts
index 6aeef71f3..30b26363c 100644
--- a/apps/perf-tests/LargeObjectArrayMemoryLeakTest/app.ts
+++ b/apps/perf-tests/LargeObjectArrayMemoryLeakTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "LargeObjectArrayMemoryLeakTest/mainPage";
+application.start({ moduleName: "LargeObjectArrayMemoryLeakTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/LargeObjectArrayMemoryTest/app.ts b/apps/perf-tests/LargeObjectArrayMemoryTest/app.ts
index 2420788cf..f3a0495a0 100644
--- a/apps/perf-tests/LargeObjectArrayMemoryTest/app.ts
+++ b/apps/perf-tests/LargeObjectArrayMemoryTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "LargeObjectArrayMemoryTest/mainPage";
+application.start({ moduleName: "LargeObjectArrayMemoryTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/NavigationMemoryLeakTest/app.ts b/apps/perf-tests/NavigationMemoryLeakTest/app.ts
index 15dbd0820..6b025610c 100644
--- a/apps/perf-tests/NavigationMemoryLeakTest/app.ts
+++ b/apps/perf-tests/NavigationMemoryLeakTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "NavigationMemoryLeakTest/mainPage";
+application.start({ moduleName: "NavigationMemoryLeakTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/SingleUIObjectMemoryLeakTest/app.ts b/apps/perf-tests/SingleUIObjectMemoryLeakTest/app.ts
index cdf8c573c..d9dca52f8 100644
--- a/apps/perf-tests/SingleUIObjectMemoryLeakTest/app.ts
+++ b/apps/perf-tests/SingleUIObjectMemoryLeakTest/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "SingleUIObjectMemoryLeakTest/mainPage";
+application.start({ moduleName: "SingleUIObjectMemoryLeakTest/mainPage" });
\ No newline at end of file
diff --git a/apps/perf-tests/SpeedTests/app.ts b/apps/perf-tests/SpeedTests/app.ts
index 0fa044a50..0c72d2496 100644
--- a/apps/perf-tests/SpeedTests/app.ts
+++ b/apps/perf-tests/SpeedTests/app.ts
@@ -1,2 +1,2 @@
 import application = require("application");
-application.mainModule = "SpeedTests/mainPage";
+application.start({ moduleName: "SpeedTests/mainPage" });
\ No newline at end of file
diff --git a/apps/pickers-demo/app.ts b/apps/pickers-demo/app.ts
index cb572300b..1e0fb2c2d 100644
--- a/apps/pickers-demo/app.ts
+++ b/apps/pickers-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/placeholder-demo/app.ts b/apps/placeholder-demo/app.ts
index cb572300b..1e0fb2c2d 100644
--- a/apps/placeholder-demo/app.ts
+++ b/apps/placeholder-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/tab-view-demo/app.ts b/apps/tab-view-demo/app.ts
index 3f1371d7d..5d1c61def 100644
--- a/apps/tab-view-demo/app.ts
+++ b/apps/tab-view-demo/app.ts
@@ -1,7 +1,5 @@
 import application = require("application");
 
-application.mainModule = "mainPage";
-
 import trace = require("trace");
 trace.enable();
 trace.setCategories(trace.categories.concat(
@@ -12,4 +10,4 @@ trace.setCategories(trace.categories.concat(
     //, trace.categories.VisualTreeEvents
     ));
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/template-blank/app.ts b/apps/template-blank/app.ts
index 53a5920f8..142aa1ad2 100644
--- a/apps/template-blank/app.ts
+++ b/apps/template-blank/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Remove this in the AppBuilder templates
 application.cssFile = "./app.css"
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/template-hello-world/app.ts b/apps/template-hello-world/app.ts
index 53a5920f8..142aa1ad2 100644
--- a/apps/template-hello-world/app.ts
+++ b/apps/template-hello-world/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Remove this in the AppBuilder templates
 application.cssFile = "./app.css"
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/template-master-detail/app.ts b/apps/template-master-detail/app.ts
index 53a5920f8..142aa1ad2 100644
--- a/apps/template-master-detail/app.ts
+++ b/apps/template-master-detail/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Remove this in the AppBuilder templates
 application.cssFile = "./app.css"
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/template-settings/app.ts b/apps/template-settings/app.ts
index 34d1ca216..142aa1ad2 100644
--- a/apps/template-settings/app.ts
+++ b/apps/template-settings/app.ts
@@ -3,5 +3,4 @@
 // Remove this in the AppBuilder templates
 application.cssFile = "./app.css"
 
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/template-tab-navigation/app.ts b/apps/template-tab-navigation/app.ts
index 53a5920f8..142aa1ad2 100644
--- a/apps/template-tab-navigation/app.ts
+++ b/apps/template-tab-navigation/app.ts
@@ -1,7 +1,6 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 // Remove this in the AppBuilder templates
 application.cssFile = "./app.css"
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/tests/app/app.ts b/apps/tests/app/app.ts
index d3330cd84..d0eb61759 100644
--- a/apps/tests/app/app.ts
+++ b/apps/tests/app/app.ts
@@ -33,8 +33,6 @@ if (application.ios) {
     });
 }
 
-application.mainModule = "app/mainPage";
-
 // Common events for both Android and iOS.
 application.on(application.launchEvent, function (args: application.ApplicationEventData) {
     if (args.android) {
@@ -147,4 +145,4 @@ else {
 
 console.log(`TIME TO LOAD APP: ${time} ms`);
 
-application.start();
+application.start({ moduleName: "app/mainPage" });
diff --git a/apps/tests/pages/app.ts b/apps/tests/pages/app.ts
index acf8d9106..da21537c4 100644
--- a/apps/tests/pages/app.ts
+++ b/apps/tests/pages/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "pages/page14";
-application.start();
+application.start({ moduleName: "pages/page14" });
\ No newline at end of file
diff --git a/apps/tests/pages/sandbox-project.ts b/apps/tests/pages/sandbox-project.ts
index 5b4879e0a..c0e926b41 100644
--- a/apps/tests/pages/sandbox-project.ts
+++ b/apps/tests/pages/sandbox-project.ts
@@ -1,5 +1,2 @@
 import application = require("application");
-
-application.mainModule = "apps/tests/pages/nnikolovTestPage";
-
-application.start();
+application.start({ moduleName: "apps/tests/pages/nnikolovTestPage" });
\ No newline at end of file
diff --git a/apps/tests/styling/app.ts b/apps/tests/styling/app.ts
index 4bff1cb04..fcb9e07da 100644
--- a/apps/tests/styling/app.ts
+++ b/apps/tests/styling/app.ts
@@ -10,5 +10,4 @@ trace.setCategories(trace.categories.concat(
 //, trace.categories.VisualTreeEvents
     ));
 
-application.mainModule = "styling/mainPage";
-application.start();
+application.start({ moduleName: "styling/mainPage" });
\ No newline at end of file
diff --git a/apps/tests/xml-declaration/app.ts b/apps/tests/xml-declaration/app.ts
index cd2aee147..efb5db57f 100644
--- a/apps/tests/xml-declaration/app.ts
+++ b/apps/tests/xml-declaration/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "xml-declaration/mainPage";
-application.start();
+application.start({ moduleName: "xml-declaration/mainPage" });
\ No newline at end of file
diff --git a/apps/transforms/app.ts b/apps/transforms/app.ts
index 2baebd169..91e1276e9 100644
--- a/apps/transforms/app.ts
+++ b/apps/transforms/app.ts
@@ -4,5 +4,4 @@ import trace = require("trace");
 trace.enable();
 trace.setCategories(trace.categories.concat(trace.categories.Animation));
 
-application.mainModule = "main-page";
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/ui-tests-app/app.ts b/apps/ui-tests-app/app.ts
index b63b05e64..cba2a252b 100644
--- a/apps/ui-tests-app/app.ts
+++ b/apps/ui-tests-app/app.ts
@@ -1,5 +1,4 @@
 import application = require("application");
-application.mainModule = "mainPage";
 
 var countResume = 0;
 var countSuspend = 0;
@@ -71,4 +70,4 @@ application.on(application.uncaughtErrorEvent, function (args: application.Appli
     }
 });
 
-application.start();
\ No newline at end of file
+application.start({ moduleName: "mainPage" });
\ No newline at end of file
diff --git a/apps/web-view-demo/app.ts b/apps/web-view-demo/app.ts
index aa64c6703..aebaaa9f7 100644
--- a/apps/web-view-demo/app.ts
+++ b/apps/web-view-demo/app.ts
@@ -1,8 +1,7 @@
 import application = require("application");
-application.mainModule = "main-page";
 
 import trace = require("trace");
 trace.enable();
 trace.setCategories(trace.categories.concat(trace.categories.Debug));
 
-application.start();
+application.start({ moduleName: "main-page" });
\ No newline at end of file
diff --git a/apps/wrap-layout-demo/app.ts b/apps/wrap-layout-demo/app.ts
index f8c884d9e..e456ad635 100644
--- a/apps/wrap-layout-demo/app.ts
+++ b/apps/wrap-layout-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "mainPage";
-application.start();
+application.start({ moduleName: "mainPage" });
\ No newline at end of file
diff --git a/apps/xml-demo/app.ts b/apps/xml-demo/app.ts
index f8c884d9e..e456ad635 100644
--- a/apps/xml-demo/app.ts
+++ b/apps/xml-demo/app.ts
@@ -1,3 +1,2 @@
 import application = require("application");
-application.mainModule = "mainPage";
-application.start();
+application.start({ moduleName: "mainPage" });
\ No newline at end of file